辽阔无垠一望无际(yí wàng wú jì): ⒈ 一眼望不到边。广袤无垠无边无际(wú biān wú jì): ⒈ 广大而看不到边际。一望无垠(yī wàng wú yín): ⒈ 辽远广阔,...